Sucker-rod antifriction means for well tubing



1,566,451 B. VAUGH SUCKER ROD ANTIFRICTION MEANS FOR WELL TUBING Filed June 16, 1924 a nion @150 5. VAUGHN dum reamed D. 22, 1925.

I 1,566,451 PATENT OFFICE. I

FEED B. VAUGHN, 01' L08 GILES, CALIFORNIA.

BECKER-BOD ANTII'BIOTION' MEANS FOR WELL TUBING.

Application filed June 16, 1924. Serial 10.720308. 2

To all whom it may concern:

Be it known that I, FRED B. VAUGHN, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented certain new and useful Iiriprovements in.

Sucker-Rod Antifriction cans for Well Tubing, of which the following is a specification.

This invention is an attachment for a well tubing adapted to guide the sucker rod which reciprocates therein, so as to keep said rod from contact with the wall of the tubing, and thereby eliminate wear.

It is the object of the invention to provide guide mechanism having anti-frictional engagement with the sucker rod, whereby the latter may be reciprocated with minimum frictional resistance.

It is a further object of the invention to support the guide mechanism in a well tubing by frictional engagement therew1th, and to provide for rea ily openlng or locking the guide mechanism in closed position on a sucker rod, so as to expedite the removal and replacement thereof.

It is a still further object of the invention to rovide a guide mechanism enga ing the 'suc er rod at longitudinally space points,

in order to maintain said rod 1n exact longitudinal alinement in the well tubing.

The invention will be understood from the following description of the accompanying drawings, in whlch,

Fig. 1 is a vertical section through a well tubing havin a sucker rod adapted for reciprocation t erein, and provided with the Fig. 2 is a transverse section on the line 2-2 of Fig. 1.

Fig. 3 is a detail section on the line 3-3 of Flg. 2.

Fig. 4 is a plan view showing one of the collars of the guide mechanism in open improved guide mechanism for the sucker therethrough, so as to hold said rod a ainst transverse shifting and contact wit wall of the tubing, the said guide mechanism carrying anti-fricton means for engagement with the reciprocating sucker rod.

The (guide mechanism comprises a collar adapte to be swung open or locked in closed position around the sucker rod, with antifrictlon means mounted in the bore of said collar and projectin beyond the same for contact with the suc er rod, the said collar having yieldable supporting arms adapted to frictionally engage the wall of the well tubing for supporting the collar therein.

In the present embodiment of the invention the collar comprises semi-annular sections 3 having tongue and groove connections at each end, one of said connections having pivot means shown as a rivet 4 extending therethrough, to form a hinge joint whereby the collar may be swung open as shown 1n Fig. 4, or may be swung to closed position with sucker rod 1 adapted for slidmg movement through the bore of the collar, the swinging ends of the hinged collar see- I tions being locked in closed position by a cotter pin 5 received through their tongue and groove connection.

The anti-friction means mounted in the bore of the collar preferably comprises ball bearings 6 journaled in square recesses 7 formed in the inner periphery of said collar, and having the ed es of said recesses crimped over said bal bearings for holding the latter in place with the surfaces thereof projecting beyond said collar into the bore of the same.

The supporting arms for the collar are shown as circumferentialiy spaced spring strips 8, one of said collars and the antifriction means carried thereby. being preferably mounted at each end of strips 8, with the endsof the latter received in recesses '9 formed in said collars.

the positioning of said anti-friction means I the construction, combination, and arrangement of parts without departing from the spirit of the invention.

I claim:

1. A guide for a suckor rod adapted to reciprocate in a well tubing, comprising axially split collars spaced axially in the tubing and arranged for reciprocation of the sucker rod through the bores of said collars, anti-friction means rotatably mounted in said collars and projecting into the bores thereof for engaging the sucker rod, hinge connections for the split sections of the collars, and circumferentially spaced yieldable arms fixed at their respective ends to the split sections of the respective collars so as to permit opening of the collars for lateral displacement from or engagement with the sucker rod, said arms being adapted for frictional engagement with the well tubing when the collars are closed on the sucker rod.

2. A guide for a sucker rod adapted to reciprocate in a well tubing comprising axially split collars spaced axially in the tubing and arranged for reciprocation of the sucker rod throu h the bores of said collars, the. walls of the ores of the collars havin recesses therein, anti-friction means mounte in said recesses and artially projectin beyond the walls of t e bores ofthe co are for engaging the sucker rod, the edges of said recesses extending partially over the projecting portions of the anti-friction means to prevent displacement thereof while permitting turning of said anti-frictionv means, hinge connections for the split sec tions of the collars ermitting opening of the collars for latera displacement from or engagement with the sucker rod, tongue and groove connections for the swin ng ends of the split sections of the col ars, removable locking means receivable through said tongue and groove connections, and circumferentially spaced yieldable arms fixed at their respective ends to the split sections of the respective collars so as to permit opening of the collars, said arms being outwardly bowed at their media-l portions for frictional engagement with the well tubing when the collars are closed on the sucker rod.

In testimon whereof I have aflixed my signature to t is specification.

FRED B. VAUGHN. 

